Which of the following operations is typically O(1) for both stacks and queues?
Practice Questions
Q1
Which of the following operations is typically O(1) for both stacks and queues?
Accessing an element
Inserting an element
Removing an element
All of the above
Questions & Step-by-Step Solutions
Which of the following operations is typically O(1) for both stacks and queues?
Step 1: Understand what a stack is. A stack is a data structure that follows the Last In First Out (LIFO) principle, meaning the last element added is the first one to be removed.
Step 2: Understand what a queue is. A queue is a data structure that follows the First In First Out (FIFO) principle, meaning the first element added is the first one to be removed.
Step 3: Identify the operation for removing an element from a stack. This operation is called 'pop'.
Step 4: Identify the operation for removing an element from a queue. This operation is called 'dequeue'.
Step 5: Learn about the time complexity of these operations. Both 'pop' for stacks and 'dequeue' for queues are typically O(1), meaning they take constant time regardless of the number of elements in the data structure.
Step 6: Conclude that removing an element (pop for stacks and dequeue for queues) is O(1) for both data structures.
